162131457 has 16 divisors (see below), whose sum is σ = 228343808. Its totient is φ = 102165840.

The previous prime is 162131443. The next prime is 162131461. The reversal of 162131457 is 754131261.

It is not a de Polignac number, because 162131457 - 2⁸ = 162131201 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162131657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16273 + ... + 24270.

It is an arithmetic number, because the mean of its divisors is an integer number (14271488).

Almost surely, 2^162131457 is an apocalyptic number.

It is an amenable number.

162131457 is a deficient number, since it is larger than the sum of its proper divisors (66212351).

162131457 is a wasteful number, since it uses less digits than its factorization.

162131457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40620.

The product of its digits is 5040, while the sum is 30.

The square root of 162131457 is about 12733.0851328341. The cubic root of 162131457 is about 545.2835905895.

The spelling of 162131457 in words is "one hundred sixty-two million, one hundred thirty-one thousand, four hundred fifty-seven".